Improved brick-machine



wwwa-Wwe- EVANS GEARY, OF HARRISBURG, PENNSYLVANIA,

Lette/rs Patent No. 84,816, dated December 8, 1868.

IDIPROVED BRICK-MACHINE. l

The Schedule referred to in these Letters Patent and-making part: of the same.

To all whom it lrita/y conce'm l Be it known that I, EVANS GEARY, of the city of Harrisburg, county of Dauphin, and State of' Pennsyl.

Vania, have invented a new and usefulv Improvement in Brick-Making Machines and I hereby certify that the following is full, clear, and exact description of the same, as regards its construction and manner of bperation, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is alongitudinal elevation, showing the working-parts in section, said section being take on the line U T, iig. 2. a

Figure 2 is a plan or top view of the machine, and

Figure 3 is a rear-end elevation.

Figures 4 and 5 are representations of some of the details. i A

In figs. l and 3, A represents the receptacle or tub, in which thev clay is deposited tobe ground or telnpered.

Said .temperingis accomplished .in the ordinary way, that is, by means of a vertical shaft, armed 'with propershaped cutters or arms', which, upon the revolution of the shaft a, so cut into and work up the clay that it is thoroughly mixed or tempered.

e Said shaft and arms are represesented in g. 1, a. being the shaft, and 1, 2, 3, 85e., the arms.

QIhe tempering-vessel A 'm mounted upon a suitable supporting-frame, consisting of four upright pieces, braced or held together by 'a horizontal stringpiece on each side of the machine. l

To the upper end of shaft a,a crank or beam is at" tached, Vby which motion is communicated to said shaft.

The tub A is constructed with two bottoms, b and b. The upper one, b', is 'out away in front, at w, fig. 1, so as to permit the tempered clay to be forced, by

' the action ofthe revolving cutters 1, 2, -3, down through the opening lw.

' Between'the upper and lower bottoms, b and b', the compressing-plunger D is placed, as seen in iig. 1. It is so constructed as to embrace the shaft a, and be permitted to move back and forth between said bottoms,

'-a portion of its body in the rear of the shaft a being cut away, so as to permit of said motion. l At the bottom-of the tempering-tubA, upon its front side, an open box,-E, is formed.

In said box is inserted another box, C, of such relative size as to permit said box C to move easily back andfortli in box E, and at the same time neatly lit it.

Upon theV front end of box C, a sliding gate or cutot; j, is arranged to work in grooved strips or guides, that are fastened to the box C, so as to hold or retain the cut-ofi' f ina vertical position.

rJfhe cutoii or gate is operated by the lever u and link m. (See iig. 5.)

The box C corresponds in height inside to the length of a brick to be made, and in width to the number of bricks that the machine is designed to make at one stroke or operation, as the said box C is provided with dividing-bars or walls that are adjusted vertically between the bottom and top sides of said box, and immediately in the rear of the cut-olif,- the spaces interveningbetween said bars representing the width of a brick.

A sliding table, B, is placed in front of the tempering-box A. (See g. 1.)

Said table is' mounted upon a proper supportingframe, and has attached to the end nearest the 'tubA the tilting-plate c, the front portion f the table B being cut away in a proper manner to-receive' it, as shown in iig.A 2. y y

' Said plate o is pivoted, at its ends, to the projecting portions of table B, in such a manner that it can be moved up and down freely upon said'pivots.

` Said pivots are inserted somewhat out of centre of the width of said plate o, nearer the upper edge than the lower, so that said plate will inclineto hang verti cally, as seen in iig. 1, when permitted to assume that` position.

'Upon the plate o, a flange, 1', (see fig. 4,) projects, at a right angle to it; y l

This ange is designed to hold in place the moulds lr.

These are made similar to the ordinary hand-moulds in common use; that is, said moulds are made Without a bottom or top, any suitable number being formedto- -gether, as seen iii-iig. 2, at r.

- The sliding table B is made of such relative height to the box @that the moulds fr, when inV position upon the plate o, as seen in iig. 1, will exactly correspond with the box (l, and in effect form a continuation of said box when the cut-off f is raised.

The'box O is prevented vfrom being forced entirely out of the containing-box Il by the ange-plate u, (see iig. 1,) that projects from the box C, under the bottom, b, of the tub A, and said, plate being slotted for the accommodation of retaining-screws.' It thus acts as a stop to the box C.

The sliding table B rests upon the top of suitable guides or strips that are fastened to the top of the frame d.

Upon said ame are also placed the strips g g', a suitable distance apart. These are intended to strike against the tilting-plate o, and raise it to a position in a line with the Itable B. This occurs when said table is slid back from the box (l, and for a purpose that will hereinafter be explained.

Upon the under side of the table B, a rack, x, havi ing proper-sized cog-teeth, is placed. Said rackis made about the length of the table, and is rigidly attached, in a central position, in relation to the sides of said table, and also `in a line parallel to them, vas is shown in fig.' 2.

` This rack a: receives the motion imparted by the toothed arch c.

Said arch is rigidly attached'to a-shaft that is supported in proper position under the table B.'I

Uponlthe supporting-franiev d', (see fig. 1,) upon the vcrank o', on rock-shaft s'.

"Thiscrank-ivheel is placed upon the same side of the machine as the crank-wheel u, and is connected to it by the rod e.

Therpoints of connection on each Wheel are so al;-

ranged that while the wheel K is permitted to make an entire revolution, the wheel n simply oscillates, making about one-third of a revolution ba-ck and forth.

This is accomplished by connecting the crank-pin on wheel n farther from the centre of -said wheel than the pin on wheeLKisplaced.

The result of this arrangement is to convert the rotary motion of wheel K into 'a reciprocatory moving of the arch or toothed segment c, and thus canse the bed B to move back or forward, as required.

vUpon the shaft a, on the other projecting end, is fastened the crank-wheel J. (See figs 2 and 3.)

Said wheel is connected, by means of link 10, to

(See iig. 3.)

Said shaft is held in proper position on the rear of frame l by the journal-boxes 8 8, and carries the cranks or arms? -8.

These are connected by links 6,6 to the compressing-plunger D, {see gs. 1 and 2,) and thus a recipro.

eating motion is given to said plunger D.

The connection or adjustment of the plunger is so arranged that it wilLmove forward toward the box C as the sliding table B is made to approach the cut-oil` fon box C.

The forked lever s, iig. l, being pivoted at D', is intended to throw the wheel 71, out of connection with the wheel i, and thus allow the tempering-.process to be continued by the shaft a running on while the moveyment of the table B is stopped, as may be desired. v

Havinggiven a full description of the several parts of themachinexits manner of operation is as follows: Clay' being plcedin the tempering-tub A, and motion given to the shaft a, the clay is ground up and forced down by the action of the arms l, 2, 3, :through the openingw in front of plunger D, the machine being supposed to be in the position shown in g. l, that is, with the moulds lr in position against the cnt-off f.

Said cut-off is now raised, and the continued action of the machine forces the clay out through thefront of boxv C into said moulds, perfectly filling them by the forcing or compressing-action of the plunger D.

. The cut-off is now forced down, and at the same moment the reciprocatory action of tne bed B carries the lled moulds away from the cuteoif, the backward movement of the table B causes the tilting-plate o to be lifted ina line with thev face of the table, by its passing over the strips g g. The filled moulds are thus broughtto the hand of the off-bearer, and, as he takes them away, empty ones are substituted in their place, and theoperation of making bricks is continued, as maybe desired.

I would further state that I do not claim, broadly,`

the separate or independent use of the tempering-tub A, feeding-box C, cnt-olif nor the open-bottom moulds a', as said devices are A`well known, and have been used before in other combinations intended for the same purpose; but a What I do claim as' new, of my invention, and desire to secure by Letters Patent of the United States, is-

The arrangement herein described of the temperingtub A, compressing-plunger B, adjustable feeding-box G, cut-ofj, tilting-plate o, open-bottom moulds T, and sliding table B, all operated as herein. set forth.

' EVAN S GEABY.. [1.. s] Witnesses:

C; A. SNYDER, WM. Y. PATTON. 

